{"id":771,"date":"2026-10-02T13:11:12","date_gmt":"2026-10-02T11:11:12","guid":{"rendered":"https:\/\/www.valfonta.com\/valvula-de-control\/"},"modified":"2026-10-05T15:22:18","modified_gmt":"2026-10-05T13:22:18","slug":"valvula-de-control","status":"publish","type":"page","link":"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/","title":{"rendered":"V\u00e0lvules de control"},"content":{"rendered":"<div class=\"wp-block-group vf-raiz vf-pl-hub is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-cat-wrap is-layout-flow wp-block-group-is-layout-flow\"><article class=\"wp-block-group vf-pdp vf-cat vf-c2 is-layout-flow wp-block-group-is-layout-flow\"><nav class=\"wp-block-group vf-breadcrumbs vfa-aria-label--Ruta%20de%20navegaci%C3%B3 is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a href=\"\/ca\/\">Inici<\/a><span class=\"vf-sep\">\u203a<\/span><span aria-current=\"page\">V\u00e0lvules de control<\/span><\/p><\/nav><div class=\"wp-block-group vf-cat-hero vf-c2-hero is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-pdp-eyebrow wp-block-paragraph\">Disseny i fabricaci\u00f3 a Badalona des de 1962<\/p><h1 class=\"wp-block-heading\">V\u00e0lvules de control<\/h1><p class=\"vf-lead wp-block-paragraph\">Ajusten el pas del fluid segons el senyal del sistema de control del proc\u00e9s. La C1 de Valfonta \u00e9s una v\u00e0lvula de globus amb actuador pneum\u00e0tic de membrana per a gasos, vapors i l\u00edquids, en servei modulant o ON\/OFF.<\/p><ul class=\"vf-pdp-keys wp-block-list\"><li><span>Di\u00e0metres<\/span><b>DN15 a DN100 <small>DN125 i DN150 sota demanda<\/small><\/b><\/li><li><span>Pressi\u00f3 nominal<\/span><b>PN25 bronze \u00b7 PN40 acer<\/b><\/li><li><span>Kv est\u00e0ndard<\/span><b>3,5 a 130 m\u00b3\/h<\/b><\/li><li><span>Temperatura<\/span><b>\u22125 a 200 \u00b0C <small>fins a 350 \u00b0C amb bonet i empaquetadura<\/small><\/b><\/li><\/ul><div class=\"wp-block-group vf-pdp-cta is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><a class=\"vf-btn vf-btn--sec\" href=\"#modelos\">Veure di\u00e0metres i Kv<\/a><\/p><\/div><p class=\"vf-pdp-contact wp-block-paragraph\">T\u00e9 dubtes sobre el Kv o l'actuador? Truqui al <a href=\"tel:+34933720888\">933 720 888<\/a> o escrigui a <a href=\"mailto:valfonta@valfonta.com\">valfonta@valfonta.com<\/a>.<\/p><\/div><div class=\"wp-block-group vf-c2-finder vfa-role--group vfa-aria-labelledby--vf-c2-fh is-layout-flow wp-block-group-is-layout-flow\"><p id=\"vf-c2-fh\" class=\"vf-fh wp-block-paragraph\">Trobi el di\u00e0metre de la seva C1<\/p><div class=\"wp-block-group vf-grp is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><label class=\"vf-lab\" for=\"vf-num-kv\">Kv necessari<\/label><\/p><div class=\"wp-block-group vf-num is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><input id=\"vf-num-kv\" type=\"number\" inputmode=\"decimal\" min=\"0\" step=\"any\" data-vf-num=\"kv\" placeholder=\"p. ex. 12\"><span>m\u00b3\/h<\/span><\/p><\/div><\/div><div class=\"wp-block-group vf-grp is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><span class=\"vf-lab\">Di\u00e0metre de la canonada<\/span><\/p><div class=\"wp-block-group vf-chips is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><button type=\"button\" class=\"vf-chip\" data-vf-filter=\"dn\" data-v=\"15-25\" aria-pressed=\"false\">DN15 a DN25<\/button><button type=\"button\" class=\"vf-chip\" data-vf-filter=\"dn\" data-v=\"32-50\" aria-pressed=\"false\">DN32 a DN50<\/button><button type=\"button\" class=\"vf-chip\" data-vf-filter=\"dn\" data-v=\"65-100\" aria-pressed=\"false\">DN65 a DN100<\/button><button type=\"button\" class=\"vf-chip\" data-vf-filter=\"dn\" data-v=\"125-150\" aria-pressed=\"false\">DN125 i DN150<\/button><\/p><\/div><\/div><div class=\"wp-block-group vf-fbar is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--pri\" href=\"#modelos\"><span>Veure <b data-vf-count=\"\">11<\/b> <span data-vf-count-txt=\"\" data-one=\"di\u00e0metre\" data-many=\"di\u00e0metres\">di\u00e0metres<\/span><\/span><\/a><button type=\"button\" class=\"vf-reset\" data-vf-reset=\"\" hidden>Treure filtres<\/button><\/p><\/div><p class=\"vf-fnote wp-block-paragraph\">El Kv \u00e9s el cabal en m\u00b3\/h que passa amb la v\u00e0lvula oberta i 1 bar de pressi\u00f3 diferencial. Veur\u00e0 els di\u00e0metres que l'assoleixen amb obturador est\u00e0ndard o sota demanda; li confirmarem la mida amb les seves dades de proc\u00e9s.<\/p><\/div><\/div><ul class=\"vf-pdp-trust wp-block-list\"><li>Disseny i fabricaci\u00f3 pr\u00f2pies a Badalona<\/li><li>Sistema de qualitat certificat ISO 9001<\/li><li>Versi\u00f3 amb marcatge ATEX II 2 GD<\/li><li>Actuador precalibrat de f\u00e0brica segons les seves dades<\/li><\/ul><nav class=\"wp-block-group vf-pdp-nav vfa-aria-label--Contingut%20de%20la%20fitxa is-layout-flow wp-block-group-is-layout-flow\"><ul class=\"wp-block-list\"><li><a href=\"#modelos\">La C1<\/a><\/li><li><a href=\"#opciones\">Opcions<\/a><\/li><li><a href=\"#como-funciona\">Com funciona<\/a><\/li><li><a href=\"#diferencias\">Control o reductora<\/a><\/li><li><a href=\"#preguntas\">Preguntes<\/a><\/li><li><a href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><\/li><\/ul><\/nav><section id=\"modelos\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">La v\u00e0lvula de control C1: di\u00e0metres i Kv<\/h2><p class=\"vf-c2-intro wp-block-paragraph\">La C1 \u00e9s la v\u00e0lvula de control amb actuador de la gamma. Filtri per Kv o per di\u00e0metre a la cap\u00e7alera. Cada di\u00e0metre t\u00e9 un Kv est\u00e0ndard i admet Kv m\u00e9s petits sota demanda.<\/p><div class=\"wp-block-group vf-c2-cards vf-c2-feat vf-t-ul is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-c2-card vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-img is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image vf-img-suelta\"><a href=\"\/ca\/producte\/valvula-control\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/ok-C1-PROVISIONAL-700x700-1.jpg\" alt=\"V\u00e0lvula de control C1 amb cos de globus embridat i actuador pneum\u00e0tic de membrana\" class=\"wp-image-183\" width=\"160\" height=\"160\" loading=\"lazy\"><\/a><\/figure><\/div><div class=\"wp-block-group vf-body is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-tag wp-block-paragraph\">Globus \u00b7 actuador pneum\u00e0tic<\/p><h3 class=\"wp-block-heading\"><a href=\"\/ca\/producte\/valvula-control\/\">C1<\/a><\/h3><p class=\"vf-sub wp-block-paragraph\">V\u00e0lvula de globus de dues vies amb actuador pneum\u00e0tic multimolla de membrana, per a gasos, vapors i l\u00edquids.<\/p><div class=\"wp-block-group vf-t-dl is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Di\u00e0metres<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">DN15 a DN100 <small>DN125 i DN150 sota demanda<\/small><\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Kv est\u00e0ndard<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">3,5 a 130 m\u00b3\/h<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Pressi\u00f3 nominal<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">PN25 bronze \u00b7 PN40 acer<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Temperatura<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">\u22125 a 200 \u00b0C <small>fins a 350 \u00b0C segons el bonet<\/small><\/p><\/div><\/div><p class=\"vf-fit wp-block-paragraph\"><b>Tri\u00ef-la si<\/b> la v\u00e0lvula s'ha de governar amb un senyal extern, pneum\u00e0tic o de 4\u201320 mA amb posicionador, i necessita una posici\u00f3 de seguretat definida si falla l'aire.<\/p><div class=\"wp-block-group vf-act is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--sec\" href=\"\/ca\/producte\/valvula-control\/\">Veure fitxa<\/a><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\" data-vf-model=\"V\u00e0lvula de control C1\">Demanar oferta<\/a><\/p><\/div><\/div><\/div><div class=\"wp-block-group vf-c2-card vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-img is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-image vf-img-suelta\"><a href=\"\/ca\/disseny-de-valvules-de-control\/\"><img decoding=\"async\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/DISEO-BRONCE-RG10-400x266-1.jpg\" alt=\"Disseny a mida\" class=\"wp-image-194\" width=\"160\" height=\"160\" loading=\"lazy\"><\/a><\/figure><\/div><div class=\"wp-block-group vf-body is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-tag wp-block-paragraph\">Sota comanda<\/p><h3 class=\"wp-block-heading\"><a href=\"\/ca\/disseny-de-valvules-de-control\/\">Disseny a mida<\/a><\/h3><p class=\"vf-sub wp-block-paragraph\">Si la C1 est\u00e0ndard no encaixa en el seu proc\u00e9s, estudiem l'aplicaci\u00f3 i adaptem la v\u00e0lvula.<\/p><div class=\"wp-block-group vf-t-dl is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Di\u00e0metres<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">DN125 i DN150<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Kv<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">redu\u00eft o especial<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Connexions<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">rosca, BW o SW<\/p><\/div><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-t-dt vf-p0 wp-block-paragraph\">Interior<\/p><p class=\"vf-t-dd vf-p0 wp-block-paragraph\">g\u00e0bia anticavitaci\u00f3 i antisoroll<\/p><\/div><\/div><div class=\"wp-block-group vf-act is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--sec\" href=\"\/ca\/disseny-de-valvules-de-control\/\">Veure el servei<\/a><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Consultar<\/a><\/p><\/div><\/div><\/div><\/div><div class=\"wp-block-group vf-c2-bar is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-count vfa-aria-live--polite wp-block-paragraph\"><b data-vf-count=\"\">11<\/b> <span data-vf-count-txt=\"\" data-one=\"di\u00e0metre\" data-many=\"di\u00e0metres\" data-fit=\"1\">di\u00e0metres<\/span><\/p><p class=\"vf-envolt wp-block-paragraph\"><button type=\"button\" class=\"vf-reset\" data-vf-reset=\"\" hidden>Treure filtres<\/button><\/p><\/div><div class=\"wp-block-group vf-c2-table vf-prim is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-tbl-wrap is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-table vf-tbl vf-tbl--grid\"><table><thead><tr><th scope=\"col\"><button type=\"button\" data-vf-sort=\"0\" data-type=\"n\">DN<\/button><\/th><th scope=\"col\"><button type=\"button\" data-vf-sort=\"1\" data-type=\"n\">Kv est\u00e0ndard (m\u00b3\/h)<\/button><\/th><th scope=\"col\"><button type=\"button\" data-vf-sort=\"2\" data-type=\"n\">Kv sota demanda (m\u00b3\/h)<\/button><\/th><th scope=\"col\"><button type=\"button\" data-vf-sort=\"3\" data-type=\"n\">Cv (gpm)<\/button><\/th><th scope=\"col\"><button type=\"button\" data-vf-sort=\"4\" data-type=\"n\">Cursa (mm)<\/button><\/th><th scope=\"col\"><button type=\"button\" data-vf-sort=\"5\" data-type=\"n\">Pes sense actuador (kg)<\/button><\/th><\/tr><\/thead><tbody><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"15\" data-dnmax=\"15\" data-kvmin=\"0.1\" data-kvmax=\"3.5\"><\/span><span class=\"vf-dato\" hidden data-s=\"15\"><\/span>DN15<\/th><td><span class=\"vf-dato\" hidden data-s=\"3.5\"><\/span>3,5<\/td><td><span class=\"vf-dato\" hidden data-s=\"0.1\"><\/span>0,1 a 2<\/td><td><span class=\"vf-dato\" hidden data-s=\"4\"><\/span>4<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"5\"><\/span>5<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"20\" data-dnmax=\"20\" data-kvmin=\"0.1\" data-kvmax=\"5\"><\/span><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>DN20<\/th><td><span class=\"vf-dato\" hidden data-s=\"5\"><\/span>5<\/td><td><span class=\"vf-dato\" hidden data-s=\"0.1\"><\/span>0,1 a 2 \u00b7 3,5<\/td><td><span class=\"vf-dato\" hidden data-s=\"5.8\"><\/span>5,8<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"6\"><\/span>6<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"25\" data-dnmax=\"25\" data-kvmin=\"0.1\" data-kvmax=\"9\"><\/span><span class=\"vf-dato\" hidden data-s=\"25\"><\/span>DN25<\/th><td><span class=\"vf-dato\" hidden data-s=\"9\"><\/span>9<\/td><td><span class=\"vf-dato\" hidden data-s=\"0.1\"><\/span>0,1 a 2 \u00b7 3,5 \u00b7 5<\/td><td><span class=\"vf-dato\" hidden data-s=\"10.4\"><\/span>10,4<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"7\"><\/span>7<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"32\" data-dnmax=\"32\" data-kvmin=\"3.5\" data-kvmax=\"15\"><\/span><span class=\"vf-dato\" hidden data-s=\"32\"><\/span>DN32<\/th><td><span class=\"vf-dato\" hidden data-s=\"15\"><\/span>15<\/td><td><span class=\"vf-dato\" hidden data-s=\"3.5\"><\/span>3,5 \u00b7 5 \u00b7 9<\/td><td><span class=\"vf-dato\" hidden data-s=\"17.5\"><\/span>17,5<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"8\"><\/span>8<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"40\" data-dnmax=\"40\" data-kvmin=\"3.5\" data-kvmax=\"22\"><\/span><span class=\"vf-dato\" hidden data-s=\"40\"><\/span>DN40<\/th><td><span class=\"vf-dato\" hidden data-s=\"22\"><\/span>22<\/td><td><span class=\"vf-dato\" hidden data-s=\"3.5\"><\/span>3,5 \u00b7 5 \u00b7 9 \u00b7 15<\/td><td><span class=\"vf-dato\" hidden data-s=\"25\"><\/span>25<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"12\"><\/span>12<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"50\" data-dnmax=\"50\" data-kvmin=\"9\" data-kvmax=\"35\"><\/span><span class=\"vf-dato\" hidden data-s=\"50\"><\/span>DN50<\/th><td><span class=\"vf-dato\" hidden data-s=\"35\"><\/span>35<\/td><td><span class=\"vf-dato\" hidden data-s=\"9\"><\/span>9 \u00b7 15 \u00b7 22<\/td><td><span class=\"vf-dato\" hidden data-s=\"41\"><\/span>41<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><td><span class=\"vf-dato\" hidden data-s=\"15\"><\/span>15<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"65\" data-dnmax=\"65\" data-kvmin=\"15\" data-kvmax=\"60\"><\/span><span class=\"vf-dato\" hidden data-s=\"65\"><\/span>DN65<\/th><td><span class=\"vf-dato\" hidden data-s=\"60\"><\/span>60<\/td><td><span class=\"vf-dato\" hidden data-s=\"15\"><\/span>15 \u00b7 22 \u00b7 35<\/td><td><span class=\"vf-dato\" hidden data-s=\"70\"><\/span>70<\/td><td><span class=\"vf-dato\" hidden data-s=\"30\"><\/span>30<\/td><td><span class=\"vf-dato\" hidden data-s=\"20\"><\/span>20<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"80\" data-dnmax=\"80\" data-kvmin=\"22\" data-kvmax=\"85\"><\/span><span class=\"vf-dato\" hidden data-s=\"80\"><\/span>DN80<\/th><td><span class=\"vf-dato\" hidden data-s=\"85\"><\/span>85<\/td><td><span class=\"vf-dato\" hidden data-s=\"22\"><\/span>22 \u00b7 35 \u00b7 60<\/td><td><span class=\"vf-dato\" hidden data-s=\"100\"><\/span>100<\/td><td><span class=\"vf-dato\" hidden data-s=\"30\"><\/span>30<\/td><td><span class=\"vf-dato\" hidden data-s=\"25\"><\/span>25<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"100\" data-dnmax=\"100\" data-kvmin=\"35\" data-kvmax=\"130\"><\/span><span class=\"vf-dato\" hidden data-s=\"100\"><\/span>DN100<\/th><td><span class=\"vf-dato\" hidden data-s=\"130\"><\/span>130<\/td><td><span class=\"vf-dato\" hidden data-s=\"35\"><\/span>35 \u00b7 60 \u00b7 85<\/td><td><span class=\"vf-dato\" hidden data-s=\"152\"><\/span>152<\/td><td><span class=\"vf-dato\" hidden data-s=\"30\"><\/span>30<\/td><td><span class=\"vf-dato\" hidden data-s=\"40\"><\/span>40<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"125\" data-dnmax=\"125\" data-kvmin=\"60\" data-kvmax=\"200\"><\/span><span class=\"vf-dato\" hidden data-s=\"125\"><\/span>DN125<\/th><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"60\"><\/span>60 \u00b7 85 \u00b7 130 \u00b7 200<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><\/tr><tr><th scope=\"row\"><span class=\"vf-dato vf-dato-fila\" hidden data-vf-item=\"p\" data-dnmin=\"150\" data-dnmax=\"150\" data-kvmin=\"85\" data-kvmax=\"260\"><\/span><span class=\"vf-dato\" hidden data-s=\"150\"><\/span>DN150<\/th><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"85\"><\/span>85 \u00b7 130 \u00b7 200 \u00b7 260<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><td><span class=\"vf-dato\" hidden data-s=\"\"><\/span>\u2013<\/td><\/tr><\/tbody><\/table><\/figure><\/div><p class=\"vf-note wp-block-paragraph\">Tots els di\u00e0metres de DN15 a DN100 es fabriquen en bronze RG-10 (PN25), acer al carboni o acer inoxidable CF3M (PN40). DN125 i DN150, nom\u00e9s sota demanda. Dades de la fitxa t\u00e8cnica C1-19A; cotes i al\u00e7ades amb actuador, a la <a href=\"\/ca\/producte\/valvula-control\/\">fitxa de la C1<\/a>.<\/p><\/div><div class=\"wp-block-group vf-c2-empty vfa-hidden-- is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\"><b>Cap di\u00e0metre de la C1 no cobreix aquest Kv.<\/b> Valfonta adapta models i dissenya v\u00e0lvules a mida: expliqui'ns la seva aplicaci\u00f3 al <a href=\"#solicitar\" data-vf-model=\"No ho s\u00e9 \/ necessito assessorament\">formulari<\/a> o vegi el <a href=\"\/ca\/disseny-de-valvules-de-control\/\">servei de disseny a mida<\/a>.<\/p><\/div><\/section><section id=\"opciones\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Opcions i configuraci\u00f3 de la C1<\/h2><p class=\"wp-block-paragraph\">\u00c9s un disseny <strong>modular<\/strong>: el mateix cos admet diferents obturadors, bonets, empaquetadures, classes de tancament i quatre mides d'actuador. Aquestes s\u00f3n les opcions que recull la seva fitxa t\u00e8cnica:<\/p><div class=\"wp-block-group vf-tbl-wrap is-layout-flow wp-block-group-is-layout-flow\"><figure class=\"wp-block-table vf-tbl\"><table><tbody><tr><th scope=\"row\">Caracter\u00edstica de l'obturador<\/th><td>Isopercentual o lineal per a regulaci\u00f3 modulant; ON\/OFF per a servei tot o res. Obturador guiat<\/td><\/tr><tr><th scope=\"row\">Classe de tancament<\/th><td>Classe IV, metall-metall \u00b7 Classe VI, obturador de PTFE + grafit \u00b7 Sota demanda: PEEK, NBR, EPDM o estel\u00b7litat<\/td><\/tr><tr><th scope=\"row\">Bonet<\/th><td>Est\u00e0ndard, de \u22125 a +200 \u00b0C \u00b7 Amb aletes, per a m\u00e9s de +200 \u00b0C \u00b7 Allargat, per a menys de \u22125 \u00b0C \u00b7 Amb manxa, consultar<\/td><\/tr><tr><th scope=\"row\">Empaquetadura<\/th><td>Doble anell en V de PTFE + grafit, fins a +200 \u00b0C (est\u00e0ndard) \u00b7 Anells en V de PTFE, fins a +150 \u00b0C \u00b7 Grafit, fins a +350 \u00b0C \u00b7 Manxa, consultar<\/td><\/tr><tr><th scope=\"row\">Actuador<\/th><td>Pneum\u00e0tic multimolla de membrana en quatre mides (HF.205, HF.275, HF.360 i HF.430), reversible en l\u00ednia d'acci\u00f3 directa a inversa<\/td><\/tr><tr><th scope=\"row\">Posici\u00f3 de seguretat<\/th><td>Normalment tancada (es tanca si falla l'aire) o normalment oberta (s'obre si falla l'aire)<\/td><\/tr><tr><th scope=\"row\">Senyal de control<\/th><td>0,2\u20131 \u00b7 0,4\u20131,2 \u00b7 0,4\u20132 \u00b7 1,5\u20133,2 bar, segons l'actuador. Aire de comandament fins a 4 barg<\/td><\/tr><tr><th scope=\"row\">Posicionador i accessoris<\/th><td>Posicionador electropneum\u00e0tic (Ex) de 4\u201320 mA o posicionador intel\u00b7ligent, filtre regulador d'aire, volant manual, contactes d'alarma. Acoblament NAMUR (IEC 534-6)<\/td><\/tr><tr><th scope=\"row\">Cos i connexions<\/th><td>Bronze RG-10 (PN25), acer al carboni GP240GH \/ A216 WCB o inox CF3M (PN40). Brides EN 1092-1 o ANSI 150\/300; sota demanda, rosca BSP o NPT, BW o SW<\/td><\/tr><tr><th scope=\"row\">Construccions especials<\/th><td>Pas redu\u00eft, g\u00e0bia anticavitaci\u00f3 i antisoroll, construcci\u00f3 en acer inoxidable<\/td><\/tr><\/tbody><\/table><\/figure><\/div><\/section><section id=\"como-funciona\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Com funciona una v\u00e0lvula de control<\/h2><div class=\"wp-block-group vf-c2-how is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-txt is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Una v\u00e0lvula de control funciona com un pas de secci\u00f3 variable: ajusta la p\u00e8rdua de c\u00e0rrega del fluid segons el senyal d'un controlador. Amb ella es regula el cabal i, a trav\u00e9s d'ell, altres variables del proc\u00e9s com la pressi\u00f3, la temperatura o el nivell.<\/p><p class=\"wp-block-paragraph\">La <a href=\"\/ca\/producte\/valvula-control\/\">v\u00e0lvula de control C1<\/a> t\u00e9 cos de globus de dues vies, seient simple i entrada superior (<em>top entry<\/em>), amb obturador guiat. La mou un <strong>actuador pneum\u00e0tic multimolla de membrana<\/strong>: l'aire de comandament pressiona la membrana i ven\u00e7 la for\u00e7a de les molles, i l'eix de l'actuador arrossega el de la v\u00e0lvula per acostar o allunyar l'obturador del seient.<\/p><p class=\"wp-block-paragraph\">Si fallen l'aire o el senyal, les molles porten la v\u00e0lvula a la seva <strong>posici\u00f3 de seguretat<\/strong>: tancada en la versi\u00f3 normalment tancada i oberta en la normalment oberta. L'actuador es pot canviar d'acci\u00f3 directa a inversa en l\u00ednia. Vegi els tipus de v\u00e0lvules de control.<\/p><\/div><figure class=\"wp-block-image size-full vf-diagram vf-c2-fig\"><img decoding=\"async\" width=\"2560\" height=\"1440\" src=\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-de-control-scaled-1.jpg\" alt=\"Cos d&#x27;acer inoxidable A351 CF3M de la v\u00e0lvula de control C1 de Valfonta amb el suport de l&#x27;actuador pneum\u00e0tic\" class=\"wp-image-161\" loading=\"lazy\"\/><figcaption class=\"wp-element-caption\">Cos de la C1 en acer inoxidable CF3M, amb el suport de l'actuador.<\/figcaption><\/figure><\/div><\/section><section id=\"diferencias\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">V\u00e0lvula de control o reductora autoaccionada<\/h2><p class=\"wp-block-paragraph\">Per mantenir una pressi\u00f3 estable aig\u00fces avall hi ha dos camins. Les <a href=\"\/ca\/valvules-reductores-de-pressio\/\">v\u00e0lvules reductores de pressi\u00f3<\/a> de Valfonta s\u00f3n autoaccionades: una molla i la mateixa pressi\u00f3 del fluid mouen l'obturador, sense aire ni electricitat. La C1 necessita aire d'instruments i un senyal de comandament, per\u00f2 es governa des del sistema de control. Ho expliquem a v\u00e0lvula autoaccionada enfront de v\u00e0lvula amb actuador.<\/p><ul class=\"vf-pdp-apps wp-block-list\"><li><b>Consigna des del control del proc\u00e9s<\/b><span>La <a href=\"\/ca\/producte\/valvula-control\/\">C1<\/a>: el senyal pneum\u00e0tic o de 4\u201320 mA (amb posicionador) canvia la posici\u00f3 de l'obturador.<\/span><\/li><li><b>Servei ON\/OFF<\/b><span>La <a href=\"\/ca\/producte\/valvula-control\/\">C1<\/a> amb obturador ON\/OFF s'obre i es tanca completament segons el senyal.<\/span><\/li><li><b>Posici\u00f3 definida si falla l'aire<\/b><span>La <a href=\"\/ca\/producte\/valvula-control\/\">C1<\/a> en versi\u00f3 normalment tancada o normalment oberta.<\/span><\/li><li><b>Sense aire d'instruments<\/b><span>Una reductora autoaccionada: la <a href=\"\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\">M1<\/a> (DN15\u2013150, vapor fins a 220 \u00b0C) o la <a href=\"\/ca\/producte\/valvula-reductora-de-pressio\/\">M2<\/a> (DN15\u2013100).<\/span><\/li><li><b>Pressi\u00f3 de sortida molt baixa<\/b><span>La reductora <a href=\"\/ca\/producte\/valvula-reductora-de-pressio\/\">M2<\/a> regula des de 0,02 barg sense actuador.<\/span><\/li><li><b>Aigua, aire i gasos neutres<\/b><span>La reductora de pist\u00f3 <a href=\"\/ca\/producte\/valvula-reductora-de-pressio-model-vd\/\">VD<\/a>, de DN15 a DN100 i fins a 40 barg d'entrada.<\/span><\/li><\/ul><\/section><section id=\"normativa\" class=\"wp-block-group vf-c2-norm is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Normativa i certificats<\/h2><div class=\"wp-block-group vf-norm vf-t-ul is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><b>PED 2014\/68\/UE<\/b><\/p><p class=\"wp-block-paragraph\">La placa de cada C1 indica si porta marcatge CE; la declaraci\u00f3 de conformitat est\u00e0 disponible sota demanda. Sistema de qualitat certificat segons el m\u00f2dul D1.<\/p><\/div><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><b>ATEX II 2 GD<\/b><\/p><p class=\"wp-block-paragraph\">Versi\u00f3 per a zones 1 i 2 (gasos) i 21 i 22 (pols). La v\u00e0lvula ha de quedar equipotencial amb la instal\u00b7laci\u00f3.<\/p><\/div><div class=\"wp-block-group vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><b>ISO 9001:2015<\/b><\/p><p class=\"wp-block-paragraph\">Disseny, fabricaci\u00f3 i comercialitzaci\u00f3 de v\u00e0lvules de regulaci\u00f3 de globus per al control de proc\u00e9s.<\/p><\/div><\/div><p class=\"wp-block-paragraph\">Descarregui els <a href=\"\/ca\/certificats\/\">certificats de Valfonta<\/a>.<\/p><\/section><section id=\"preguntas\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Preguntes freq\u00fcents sobre v\u00e0lvules de control<\/h2><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Qu\u00e8 \u00e9s una v\u00e0lvula de control?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">\u00c9s una v\u00e0lvula que canvia la secci\u00f3 de pas del fluid segons el senyal d'un controlador, per regular el cabal i, amb ell, la pressi\u00f3, la temperatura o el nivell del proc\u00e9s. La C1 de Valfonta ho fa amb un actuador pneum\u00e0tic de membrana.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quina difer\u00e8ncia hi ha entre una v\u00e0lvula de control i una reductora autoaccionada?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">La v\u00e0lvula de control mou l'obturador amb un actuador que respon a un senyal extern, per la qual cosa necessita aire de comandament (en la C1, fins a 4 barg). Una reductora autoaccionada, com la <a href=\"\/ca\/producte\/valvula-reductora-de-pressio-autoaccionada\/\">M1<\/a>, la <a href=\"\/ca\/producte\/valvula-reductora-de-pressio\/\">M2<\/a> o la <a href=\"\/ca\/producte\/valvula-reductora-de-pressio-model-vd\/\">VD<\/a>, mant\u00e9 la pressi\u00f3 de sortida amb l'energia del mateix fluid. Vegi v\u00e0lvula autoaccionada enfront de v\u00e0lvula amb actuador.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Quines dades necessita Valfonta per dimensionar la C1?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">El fluid i la seva temperatura, les pressions d'entrada i de sortida, els cabals m\u00e0xim i m\u00ednim (o el Kv), el senyal de control, la posici\u00f3 de seguretat (NC o NA), el material del cos, la connexi\u00f3 i la classe de tancament.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Qu\u00e8 passa si falla l&#x27;aire de comandament?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Les molles de l'actuador porten la v\u00e0lvula a la seva posici\u00f3 de seguretat: la versi\u00f3 normalment tancada es tanca i la normalment oberta s'obre. Quan torna el senyal, la v\u00e0lvula recupera la seva posici\u00f3 de treball.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Es pot comandar amb un senyal de 4\u201320 mA?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">S\u00ed, amb el posicionador electropneum\u00e0tic (Ex) de 4\u201320 mA o amb un posicionador intel\u00b7ligent, que s'ofereixen com a opci\u00f3. M\u00e9s informaci\u00f3 sobre les v\u00e0lvules autom\u00e0tiques de control.<\/p><\/div><\/details><details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Fins a quina temperatura treballa la C1?<\/summary><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><p class=\"wp-block-paragraph\">Amb bonet i empaquetadura est\u00e0ndard, de \u22125 a +200 \u00b0C. Amb bonet amb aletes i empaquetadura de grafit, fins a +350 \u00b0C, i amb bonet allargat, per sota de \u22125 \u00b0C. La pressi\u00f3 admissible del cos d'acer baixa amb la temperatura.<\/p><\/div><\/details><\/section><section id=\"guias\" class=\"wp-block-group vf-c2-more is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-sin-idioma is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"vf-sin-idioma wp-block-heading\">Guies t\u00e8cniques sobre v\u00e0lvules de control<\/h2><div class=\"wp-block-group vf-arts vf-sin-idioma vf-t-ul is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/valvula-de-control-tipos\/\">V\u00e0lvula de control: tipus i solucions<\/a><\/p><\/div><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/seleccion-de-valvulas-de-control\/\">Selecci\u00f3 de v\u00e0lvules de control<\/a><\/p><\/div><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/valvulas-automaticas-de-control\/\">V\u00e0lvules autom\u00e0tiques de control<\/a><\/p><\/div><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/valvula-autoaccionada-vs-con-actuador\/\">V\u00e0lvula autoaccionada vs amb actuador<\/a><\/p><\/div><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/valvulas-de-control-de-presion-errores-comunes\/\">V\u00e0lvules de control de pressi\u00f3: errors<\/a><\/p><\/div><div class=\"wp-block-group vf-sin-idioma vf-t-li is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a data-vf-href=\"\/blog\/valvulas-atex\/\">V\u00e0lvules ATEX: tipus i normativa<\/a><\/p><\/div><\/div><\/div><p class=\"vf-fams wp-block-paragraph\"><b>Altres fam\u00edlies:<\/b> <a href=\"\/ca\/valvules-reductores-de-pressio\/\">V\u00e0lvules reductores de pressi\u00f3<\/a> \u00b7 <a href=\"\/ca\/valvules-alleujament-de-pressio\/\">V\u00e0lvules d'alleujament de pressi\u00f3<\/a> \u00b7 <a href=\"\/ca\/disseny-de-valvules-de-control\/\">Disseny a mida<\/a> \u00b7 <a href=\"\/ca\/valvules-de-seguretat\/\">V\u00e0lvules de seguretat<\/a><\/p><\/section><section id=\"solicitar\" class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group vf-quote is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">Sol\u00b7liciti oferta d'una v\u00e0lvula de control<\/h2><p class=\"wp-block-paragraph\">Indiqui'ns les dades del seu proc\u00e9s i li proposarem el di\u00e0metre, el Kv, l'obturador i l'actuador adequats.<\/p><ul class=\"wp-block-list\"><li>Fluid, temperatura i pressi\u00f3 de servei<\/li><li>Pressions d'entrada i de sortida i cabals m\u00e0xim i m\u00ednim (o Kv)<\/li><li>Senyal de control i posici\u00f3 de seguretat (NC o NA)<\/li><li>Material del cos, connexi\u00f3 i classe de tancament<\/li><\/ul><p class=\"vf-pdp-contact wp-block-paragraph\">Tamb\u00e9 pot trucar al <a href=\"tel:+34933720888\">933 720 888<\/a>.<\/p><\/div>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f577-o1\" lang=\"ca\" dir=\"ltr\" data-wpcf7-id=\"577\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ca\/wp-json\/wp\/v2\/pages\/771#wpcf7-f577-o1\" method=\"post\" class=\"wpcf7-form init vf-form wpcf7-acceptance-as-validation\" aria-label=\"Formulari de contacte\" novalidate=\"novalidate\" data-status=\"init\" toolname=\"solicitar_oferta\" tooldescription=\"Demana a Valfonta una oferta dels models d&#039;aquesta p\u00e0gina (model, di\u00e0metre, fluid i pressions); respon una persona de l&#039;equip.\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"577\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.2.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"ca\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f577-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/><input type=\"hidden\" name=\"_vf_t\" value=\"1792703024.a39ad365d552932f\" \/>\n<\/fieldset>\n<input class=\"wpcf7-form-control wpcf7-hidden\" value=\"V\u00e1lvulas de control\" type=\"hidden\" name=\"familia\" \/><label>Nom *<span class=\"wpcf7-form-control-wrap\" data-name=\"nombre\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"nombre\" \/><\/span><\/label><label>Empresa<span class=\"wpcf7-form-control-wrap\" data-name=\"empresa\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" autocomplete=\"organization\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"empresa\" \/><\/span><\/label><label>Correu electr\u00f2nic *<span class=\"wpcf7-form-control-wrap\" data-name=\"email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"email\" \/><\/span><\/label><label>Tel\u00e8fon<span class=\"wpcf7-form-control-wrap\" data-name=\"telefono\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel\" autocomplete=\"tel\" aria-invalid=\"false\" value=\"\" type=\"tel\" name=\"telefono\" \/><\/span><\/label><label class=\"vf-full\">Model<span class=\"wpcf7-form-control-wrap\" data-name=\"modelo\"><select class=\"wpcf7-form-control wpcf7-select\" aria-invalid=\"false\" name=\"modelo\"><option value=\"\">Seleccioni<\/option><option value=\"V\u00e0lvula de control C1\">V\u00e0lvula de control C1<\/option><option value=\"Disseny a mida\">Disseny a mida<\/option><option value=\"No ho s\u00e9 \/ necessito assessorament\">No ho s\u00e9 \/ necessito assessorament<\/option><\/select><\/span><\/label><label>Fluid<span class=\"wpcf7-form-control-wrap\" data-name=\"fluido\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"vapor, aigua, aire, gas\u2026\" value=\"\" type=\"text\" name=\"fluido\" \/><\/span><\/label><label>Kv necessari (m\u00b3\/h)<span class=\"wpcf7-form-control-wrap\" data-name=\"kv\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"kv\" \/><\/span><\/label><label>Pressi\u00f3 d'entrada (barg)<span class=\"wpcf7-form-control-wrap\" data-name=\"p_entrada\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"p_entrada\" \/><\/span><\/label><label>Pressi\u00f3 de sortida (barg)<span class=\"wpcf7-form-control-wrap\" data-name=\"p_salida\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"p_salida\" \/><\/span><\/label><label>Cabal<span class=\"wpcf7-form-control-wrap\" data-name=\"caudal\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"p. ex. 5 m\u00b3\/h\" value=\"\" type=\"text\" name=\"caudal\" \/><\/span><\/label><label>Temperatura (\u00b0C)<span class=\"wpcf7-form-control-wrap\" data-name=\"temperatura\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"temperatura\" \/><\/span><\/label><label>Senyal de control<span class=\"wpcf7-form-control-wrap\" data-name=\"senal\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"p. ex. 4\u201320 mA o 0,2\u20131 bar\" value=\"\" type=\"text\" name=\"senal\" \/><\/span><\/label><label class=\"vf-full\">Missatge<span class=\"wpcf7-form-control-wrap\" data-name=\"mensaje\"><textarea cols=\"40\" rows=\"4\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" name=\"mensaje\"><\/textarea><\/span><\/label><label class=\"vf-chk vf-full\"><span class=\"wpcf7-form-control-wrap\" data-name=\"privacidad\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><input type=\"checkbox\" name=\"privacidad\" value=\"1\" aria-invalid=\"false\" \/><\/span><\/span><\/span> <span>He llegit i accepto la <a href=\"\/ca\/politica-de-privacitat\/\">pol\u00edtica de privacitat<\/a> *<\/span><\/label><input class=\"wpcf7-form-control wpcf7-submit has-spinner vf-btn vf-btn--pri\" type=\"submit\" value=\"Enviar la sol\u00b7licitud\" \/><span class=\"vf-hp\" aria-hidden=\"true\"><label>Web <input type=\"text\" name=\"vf_web\" value=\"\" tabindex=\"-1\" autocomplete=\"off\" toolparamdescription=\"Campo de control: d\u00e9jalo vac\u00edo\"><\/label><\/span><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n<\/div><\/section><div class=\"wp-block-group vf-pdp-bar is-layout-flow wp-block-group-is-layout-flow\"><p class=\"vf-envolt wp-block-paragraph\"><a class=\"vf-btn vf-btn--sec\" href=\"tel:+34933720888\">Trucar<\/a><a class=\"vf-btn vf-btn--pri\" href=\"#solicitar\">Sol\u00b7licitar oferta<\/a><\/p><\/div><\/article><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Inici\u203aV\u00e0lvules de control Disseny i fabricaci\u00f3 a Badalona des de 1962 V\u00e0lvules de control Ajusten el pas del fluid segons el senyal del sistema de control del proc\u00e9s. La C1 de Valfonta \u00e9s una v\u00e0lvula de globus amb actuador pneum\u00e0tic de membrana per a gasos, vapors i l\u00edquids, en servei modulant o ON\/OFF. Sol\u00b7licitar ofertaVeure ... <a title=\"V\u00e0lvules de control\" class=\"read-more\" href=\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/\" aria-label=\"M\u00e9s informaci\u00f3 sobre V\u00e0lvules de control\">Llegiu m\u00e9s<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_generate-full-width-content":"true","_generate-disable-headline":"true","rank_math_title":"V\u00e0lvules de control amb actuador pneum\u00e0tic | Valfonta","rank_math_description":"V\u00e0lvula de control C1 de Valfonta: globus amb actuador pneum\u00e0tic, DN15 a DN100, PN40 i Kv fins a 130 m\u00b3\/h. Trobi el seu di\u00e0metre per Kv i demani oferta.","rank_math_focus_keyword":"","vf_jsonld":"[{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.valfonta.com\/#organization\",\"name\":\"Valfonta\",\"legalName\":\"Val Fonta, S.L.\",\"taxID\":\"B59935718\",\"url\":\"https:\/\/www.valfonta.com\/ca\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valfonta-logo.webp\"},\"foundingDate\":\"1962\",\"email\":\"valfonta@valfonta.com\",\"telephone\":\"+34 933 720 888\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"C\/ Bronze 26, Pol. Ind. Les Guixeres\",\"postalCode\":\"08915\",\"addressLocality\":\"Badalona\",\"addressRegion\":\"Barcelona\",\"addressCountry\":\"ES\"},\"description\":\"Disseny, fabricaci\u00f3 i venda de v\u00e0lvules reductores de pressi\u00f3, v\u00e0lvules d'alleujament de pressi\u00f3 i v\u00e0lvules de control.\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.valfonta.com\/#website\",\"url\":\"https:\/\/www.valfonta.com\/ca\/\",\"name\":\"Valfonta\",\"publisher\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\"},{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#webpage\",\"url\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/\",\"name\":\"V\u00e0lvules de control amb actuador pneum\u00e0tic | Valfonta\",\"description\":\"V\u00e0lvula de control C1 de Valfonta: globus amb actuador pneum\u00e0tic, DN15 a DN100, PN40 i Kv fins a 130 m\u00b3\/h. Trobi el seu di\u00e0metre per Kv i demani oferta.\",\"isPartOf\":{\"@id\":\"https:\/\/www.valfonta.com\/#website\"},\"about\":{\"@id\":\"https:\/\/www.valfonta.com\/#organization\"},\"inLanguage\":\"ca\",\"datePublished\":\"2020-03-11T10:34:24+02:00\",\"dateModified\":\"2026-01-14T01:27:49+02:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#breadcrumb\"},\"mainEntity\":{\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#modelos\"},\"primaryImageOfPage\":{\"@type\":\"ImageObject\",\"url\":\"https:\/\/www.valfonta.com\/wp-content\/uploads\/2026\/10\/valvula-de-control-scaled-1.jpg\"}},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inici\",\"item\":\"https:\/\/www.valfonta.com\/ca\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"V\u00e0lvules de control\",\"item\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/\"}]},{\"@type\":\"ItemList\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#modelos\",\"name\":\"V\u00e0lvules de control\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"url\":\"https:\/\/www.valfonta.com\/ca\/producte\/valvula-control\/\",\"name\":\"V\u00e0lvula de control amb actuador pneum\u00e0tic C1\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/www.valfonta.com\/ca\/valvula-de-control\/#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Qu\u00e8 \u00e9s una v\u00e0lvula de control?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u00c9s una v\u00e0lvula que canvia la secci\u00f3 de pas del fluid segons el senyal d'un controlador, per regular el cabal i, amb ell, la pressi\u00f3, la temperatura o el nivell del proc\u00e9s. La C1 de Valfonta ho fa amb un actuador pneum\u00e0tic de membrana.\"}},{\"@type\":\"Question\",\"name\":\"Quina difer\u00e8ncia hi ha entre una v\u00e0lvula de control i una reductora autoaccionada?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"La v\u00e0lvula de control mou l'obturador amb un actuador que respon a un senyal extern, per la qual cosa necessita aire de comandament (en la C1, fins a 4 barg). Una reductora autoaccionada, com la M1, la M2 o la VD, mant\u00e9 la pressi\u00f3 de sortida amb l'energia del mateix fluid. Vegi v\u00e0lvula autoaccionada enfront de v\u00e0lvula amb actuador.\"}},{\"@type\":\"Question\",\"name\":\"Quines dades necessita Valfonta per dimensionar la C1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"El fluid i la seva temperatura, les pressions d'entrada i de sortida, els cabals m\u00e0xim i m\u00ednim (o el Kv), el senyal de control, la posici\u00f3 de seguretat (NC o NA), el material del cos, la connexi\u00f3 i la classe de tancament.\"}},{\"@type\":\"Question\",\"name\":\"Qu\u00e8 passa si falla l'aire de comandament?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Les molles de l'actuador porten la v\u00e0lvula a la seva posici\u00f3 de seguretat: la versi\u00f3 normalment tancada es tanca i la normalment oberta s'obre. Quan torna el senyal, la v\u00e0lvula recupera la seva posici\u00f3 de treball.\"}},{\"@type\":\"Question\",\"name\":\"Es pot comandar amb un senyal de 4\u201320 mA?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"S\u00ed, amb el posicionador electropneum\u00e0tic (Ex) de 4\u201320 mA o amb un posicionador intel\u00b7ligent, que s'ofereixen com a opci\u00f3. M\u00e9s informaci\u00f3 sobre les v\u00e0lvules autom\u00e0tiques de control.\"}},{\"@type\":\"Question\",\"name\":\"Fins a quina temperatura treballa la C1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Amb bonet i empaquetadura est\u00e0ndard, de \u22125 a +200 \u00b0C. Amb bonet amb aletes i empaquetadura de grafit, fins a +350 \u00b0C, i amb bonet allargat, per sota de \u22125 \u00b0C. La pressi\u00f3 admissible del cos d'acer baixa amb la temperatura.\"}}]}]}]","footnotes":"","_vg_translation_of":"44","_vg_lang":"ca","_vg_wpml_state":"{\"lang\":\"ca\",\"trid\":\"44\",\"src\":\"es\"}"},"class_list":["post-771","page","type-page","status-publish"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/pages\/771","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/comments?post=771"}],"version-history":[{"count":4,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/pages\/771\/revisions"}],"predecessor-version":[{"id":812,"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/pages\/771\/revisions\/812"}],"wp:attachment":[{"href":"https:\/\/www.valfonta.com\/ca\/wp-json\/wp\/v2\/media?parent=771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}